Osisko Development Completes 13,000-Meter Infill Drilling Program at Cariboo Gold Project and Provides Update on Ongoing Lowhee Underground Drilling; Intercepts Include 44.68 g/t Gold Over 1.5 Meters From 27.9 Meters Downhole, Including 133.62 g/t Gold Ov

HIGHLIGHTS

• 13,684 m of grid infill drilling completed (2,659 m new results) on 10-m drill spacing in 142 drill holes from August 2025 representing the entirety of the planned Appian infill program
• Highlight intercepts include: 44.68 g/t Au over 1.5 m from 27.9 m downhole (including 133.62 g/t Au over 0.5 m from 28.4 m downhole), and 25.78 g/t Au over 2.5 m from 41.3 m downhole (including 103.47 g/t Au over 0.5 m from 42.8 m downhole, and 12.51 g/t Au over 1.0 m from 41.8 m downhole)
• 2,995 m of additional infill and near mine exploration drilling completed as part of ongoing Lowhee zone underground diamond drilling
• Highlight intercepts include: 31.64 g/t Au over 2.0 m from 50.0 m downhole (including 125.24 g/t over 0.5 m from 50.5 m downhole), and 11.21 g/t Au over 4.9 m from 63.3 m downhole (including 58.19 g/t Au over 0.7 m from 65.0 m downhole, and 17.57 g/t Au over 0.7 m from 63.3 m downhole).
• Results to date continue to contribute to a more detailed understanding of spatial controls and local variability within Lowhee Zone and give positive indications for near mine potential
  
  

MONTREAL, June 09, 2026 (GLOBE NEWSWIRE) -- Osisko Development Corp. (NYSE: ODV, TSXV: ODV) ("Osisko Development" or the "Company") is pleased to announce new infill drilling results from its completed 13,000-meter program on 10 meter drill spacing, as well as new results from additional infill and near mine exploration activities in the Lowhee Zone of the Company's permitted, 100%-owned Cariboo Gold Project (the "Project"), located in central British Columbia ("B.C."), Canada. Three of the six drill hole fans reported herein comprise the final 2,659 meters ("m") of the 13,000 m underground infill program, bringing the final tally of drilling with full results to 13,684 m. The remaining three fans comprise an additional 2,995 m of infill and near mine exploration drilling at the L1290-ORE-000 and L1260-ORE-002 levels. Reconciliation work is underway on an updated localized block model, with final results anticipated in the second quarter of 2026.

Chris Lodder, President, stated, "The completion of the tighter infill drill spacing gives us a better understanding of vein corridor spatial geometries and local variability specific to this part of the Lowhee deposit, and gives us confidence going forward to help refine infill drill requirements, production designs and sequencing in the Lowhee deposit of the Cariboo Gold Project. The additional infill and near mine exploration intercepts reinforce the importance of continued drilling in underexplored zones."

DRILL ASSAY HIGHLIGHTS

This news release includes assays from fifty-five (55) underground infill and near mine exploration HQ diamond drill ("DD") holes (63.5-millimeter diameter) totaling 5,654 m with depths ranging from 76.5 to 138 m (see Table 1 and Figure 2). Select photon and fire assay highlights include:

• 44.68 grams per tonne ("g/t") gold ("Au") over 1.5 m in BMU-25-176 from 27.9 downhole, including:
  • 133.62 g/t Au over 0.5 m from 28.4 m downhole
• 25.78 g/t Au over 2.5 m in BMU-26-055 from 41.3 m downhole, including:
  • 103.47 g/t Au over 0.5 m from 42.8 downhole, and
  • 12.51 g/t Au over 1.0 m from 41.8 downhole

• 31.64 g/t Au over 2 m in BMU-26-034 from 50.0 m downhole, including:
  • 125.24 g/t Au over 0.5 m from 50.5 m downhole, and
• 11.21 g/t Au over 4.9 m in BMU-26-031 from 63.3 m downhole, including:
  • 58.19 g/t Au over 0.7 m from 65.0 m downhole, and
  • 17.57 g/t Au over 0.7 m from 63.3 m downhole

• 21.84 g/t Au over 2.5 m in BMU-26-008 from 79.7 m downhole, including:
  • 91.3 g/t Au over 0.5 m from 79.7 m downhole, and
  • 6.79 g/t Au over 0.5 m from 81.2 m downhole, and
  • 5.97 g/t Au over 0.5 m from 80.7 m downhole, and
  • 2.66 g/t Au over 0.5 m from 80.2 m downhole, and
  • 2.47 g/t Au over 0.5 m from 81.7 m downhole
• 91.99 g/t Au over 0.5 m in BMU-26-013 from 73.75 m downhole
• 18.59 g/t Au over 2.65 m in BMU-26-006 from 43.35 m downhole, including:
  • 48.93 g/t Au over 1.0 m from 43.85 m downhole
• 4.76 g/t Au over 6.05 m in BMU-26-037 from 85.0 m downhole, including:
  • 44.79 g/t Au over 0.5 m from 88.5 m downhole, and
  • 6.13 g/t Au over 0.5 m from 88.0 m downhole, and
  • 4.02 g/t Au over 0.5 m from 87.0 m downhole
• 3.28 g/t Au over 7.3 m in BMU-25-179 from 81.7 m downhole, including:
  • 12.73 g/t Au over 0.95 m from 84.85 m downhole, and
  • 9.68 g/t Au over 0.9 m from 85.8 m downhole
• 46.37 g/t Au over 0.5 m in BMU-26-022 from 14.0 m downhole
  
  

Complete assay highlights, including true width estimates, are presented in Table 1 and drill hole locations and orientations are listed in Table 2. Intervals not recovered were assigned zero grade. Top cuts have not been applied to high grade assays.

DISCUSSION OF RESULTS

• Figures 4-6 (1260 level): Cut-off assay composites completing the planned 13,000 m systematic grid infill program. These last three fans were testing areas peripheral to reserve stopes, and outside the modeled vein corridors. Intercepts received to date suggest possible extensions of vein corridors, with potential for resource conversion and upside mineralization.
• Figures 7-8 (1290 Level): Cut-off assay composites from additional infill drilling at the 1290 levels show a degree of spatial correlation with the modelled reserve stopes with intercepts outside these areas suggesting potential for resource conversion and upside mineralization.
• Figure 9 (1260 Level): Cut-off assay composites from infill and near mine exploration drilling to the southeast at the 1260 level include several new intercepts outside the current vein corridors and resource footprint.
• All intercepts will be incorporated in the planned remodelling and mineral resource calculation process to determine their implications on an updated local block model and any potential adjustments to planned reserve stopes. In certain areas, this may support the addition of new planned reserve stopes, subject to the final estimation process outcome.
  
  

Figure 1: Cariboo Gold Project deposit map with Location of Lowhee Zone and Cow Portal underground access.

Figure 2: Location and overview of ongoing Lowhee Zone underground definition infill and near mine exploration diamond drilling

Figure 3: Lowhee Zone select underground drilling highlights (plan view).

Figure 4: L1260-ORE-003 Lowhee Zone grid infill select underground drill assay highlights (this release) with previously released surface and underground diamond drilling results in cross section by fan. Results from immediately adjacent fans within slice omitted for visual clarity (20 m slice looking 048°).

Figure 5: L1260-ORE-003 Lowhee Zone grid infill select underground drill assay highlights (this release) with previously released surface and underground diamond drilling results in cross section by fan. Results from immediately adjacent fans within slice omitted for visual clarity (20 m slice looking 060°).

Figure 6: L1260-ORE-003 Lowhee Zone grid infill select underground drill assay highlights (this release) with previously released surface and underground diamond drilling results in cross section by fan. Results from immediately adjacent fans within slice omitted for visual clarity (20 m slice looking 073°).

Figure 7: L1290-ORE-000 Lowhee Zone infill select underground drill assay highlights (this release) with previously released surface and underground diamond drilling results in cross section by fan. Results from immediately adjacent fans within slice omitted for visual clarity (20 m slice looking 017°).

Figure 8: L1290-ORE-000 Lowhee Zone infill select underground drill assay highlights (this release) with previously released surface and underground diamond drilling results in cross section by fan. Results from immediately adjacent fans within slice omitted for visual clarity (20 m slice looking 025°).

Figure 9: L1260-ORE-002 Lowhee Zone infill and near mine exploration select underground drill assay highlights (this release) with previously released surface and underground diamond drilling results in cross section by fan. Results from immediately adjacent fans within slice omitted for visual clarity (20 m slice looking 051°).

Table 1: Length weighted assay composites and individual samples>=1.8 g/t for Lowhee Zone underground DD.

Drillhole ID		From (m)	To (m)		Length (m)		Au (g/t)	Est. True Width (m)
BMU-25-167		14.8	15.8		1		2.11	0.89
	Including	14.8	15.3		0.5		3.23
		49.4	50.4		1		2.23	0.77
	Including	49.4	49.9		0.5		3.84
BMU-25-170		4	4.5		0.5		10.57	0.43
		13.55	14.55		1		4.00	0.82
	Including	14.05	14.55		0.5		7.86
		41.5	42		0.5		5.45	0.43
		58.5	59.5		1		2.84	0.91
	Including	58.5	59		0.5		5.40
		80.5	82		1.5		3.18	1.36
	Including	80.5	81.5		1		4.69
BMU-25-173		17	17.5		0.5		2.53	0.43
BMU-25-176		3	3.55		0.55		2.46	0.28
		27.9	29.4		1.5		44.68	1.36
	Including	28.4	28.9		0.5		133.62
BMU-25-179		81.7	89		7.3		3.28	6.96
	Including	84.85	85.8		0.95		12.73
	and	85.8	86.7		0.9		9.68
		90.5	92.4		1.9		2.01	1.87
	Including	90.5	91		0.5		7.02
BMU-26-001		44.7	46.2		1.5		1.86	1.36
	Including	45.2	45.7		0.5		4.78
BMU-26-002		31.7	34.2		2.5		7.08	2.27
	Including	32.2	32.7		0.5		32.31
	and	33.2	33.7		0.5		2.30
		48.2	50.3		2.1		10.09	1.90
	Including	48.9	49.8		0.9		23.31
		65.8	68.1		2.3		9.52	2.08
	Including	65.8	66.4		0.6		5.02
	and	66.4	67.1		0.7		26.38
		74	78.7		4.7		1.96	4.26
	Including	78.2	78.7		0.5		16.64
BMU-26-003		1.5	3.1		1.6		2.47	1.45
	Including	2	2.6		0.6		6.09
		35.5	39		3.5		2.12	3.45
	Including	35.5	36		0.5		12.60
		73.35	75.85		2.5		7.30	2.46
	Including	73.85	74.6		0.75		5.39
	and	74.6	75.35		0.75		18.36
BMU-26-004		58.5	59		0.5		3.11	0.41
		66.5	67		0.5		2.85	0.43
BMU-26-005		1	3.25		2.25		4.70	1.59
	Including	1	1.5		0.5		12.10
	and	2.75	3.25		0.5		8.91
		14	16		2		5.28	1.41
	Including	14	15		1		10.40
		17.5	18.5		1		12.24	0.77
	Including	18	18.5		0.5		23.47
		30.9	31.9		1		7.13	0.82
	Including	30.9	31.4		0.5		14.12
		37	38		1		2.34	0.71
	Including	37.5	38		0.5		4.52
		40	41.5		1.5		4.13	0.86
	Including	40	40.5		0.5		10.91
		58	64		6		2.10	4.12
	Including	62	62.5		0.5		10.88
	and	62.5	63		0.5		10.99
		76.25	78.8		2.55		5.92	1.18
	Including	76.75	77.25		0.5		23.10
	and	78.3	78.8		0.5		6.86
		80.05	81.1		1.05		4.98	0.60
	Including	80.05	80.55		0.5		7.50
	and	80.55	81.1		0.55		2.68
		90	91		1		2.18	0.64
	Including	90	90.5		0.5		4.22
		104.5	105		0.5		2.97	0.32
		117.05	119.05		2		6.06	1.15
	Including	117.55	118.05		0.5		4.97
	and	118.05	118.55		0.5		17.27
		128	129		1		1.96	0.71
		137.4	138		0.6		9.22	0.42
BMU-26-006		2.95	3.95		1		12.53	0.71
	Including	3.45	3.95		0.5		24.91
		33.9	35.9		2		3.79	1.64
	Including	34.9	35.4		0.5		11.52
	and	35.4	35.9		0.5		2.63
		43.35	46		2.65		18.59	1.70
	Including	43.85	44.85		1		48.93
		55.85	56.35		0.5		2.28	0.32
BMU-26-007		No Significant Assays
BMU-26-008		5.5	6		0.5		2.74	0.41
		11.9	12.4		0.5		1.90	0.41
		23	23.5		0.5		4.72	0.38
		25	25.5		0.5		3.09	0.50
		29	29.5		0.5		3.04	0.50
		79.7	82.2		2.5		21.84	1.92
	https://www.globenewswire.com/RssFeed/Content/FullText/language/en/max/100 Contains the last 100 releases en newsdesk@globenewswire.com (NewsDesk) Wed, 10 Jun 2026 01:00:00 GMT webmaster@globenewswire.com (Webmaster) https://www.globenewswire.com/news-release/2026/06/10/3309415/0/en/Geekplus-Deploys-Moving-Type-AMRs-at-Multiple-Toyota-Motor-Corporation-Plants.html https://www.globenewswire.com/news-release/2026/06/10/3309415/0/en/Geekplus-Deploys-Moving-Type-AMRs-at-Multiple-Toyota-Motor-Corporation-Plants.html HKSE:2590 CNE1000070L0 —Supporting fully unmanned inter-process transport from inbound receiving to picking— BEIJING, June 10, 2026 (GLOBE NEWSWIRE) -- Geekplus Co., Ltd. has announced the deployment of moving-type Autonomous Mobile Robots (AMRs) at several Toyota Motor Corporation plants in Japan. Currently, a total of 436 Geekplus moving-type AMRs are operating in Toyota Motor Corporation's factories, with operations scaled up to approximately 200 units per system. ■ Deployment Background As labor shortages due to a declining population and new labor regulations for truck drivers become urgent challenges for the manufacturing industry, Toyota Motor Corporation is accelerating the automation and efficiency of its in-plant logistics. Geekplus moving-type AMRs were selected for their flexible system design, which allows for versatile operations, and their ability to significantly reduce the physical workload of on-site staff. ■ Implementation Details The deployment of moving-type AMRs supports the unmanned movement of goods across various stages, from inbound receiving to picking and processing areas. By replacing manual transport tasks previously performed by personnel, the AMRs contribute to labor savings and productivity improvements. Furthermore, they help create a safer workplace by reducing the risks associated with the intersection of forklifts and towing vehicles. The AMRs also contribute to the "visualization of inventory movement" by accumulating travel data within the plants. ■ Future Initiatives Beyond the deployment of moving-type AMRs and AGVs, Geekplus provides ongoing support by sharing operational know-how and providing maintenance education to ensure that on-site personnel can utilize automation equipment safely and effectively. Through these initiatives, Geekplus empowers proactive on-site improvements and contributes to continuous productivity gains. Geekplus remains committed to supporting Toyota Motor Corporation’s efforts to standardize in-plant logistics. ■ Comment from Hirokazu Kato, CEO of Geekplus Japan "We are deeply honored to contribute to the logistics efficiency of Toyota Motor Corporation, a leader in Japanese manufacturing. We take great pride in knowing that our flexible system design and engineering capabilities have been recognized. It is a privilege to see our solutions contribute to productivity improvements while creating a better working environment for the truck drivers and on-site staff who support these operations. We will continue to provide support through our cutting-edge solutions and technological expertise." ■ About Moving-Type AMRs Moving-type Autonomous Mobile Robots (AMRs) are unmanned systems designed to automatically move parts and products within factories and warehouses. By utilizing sensors and map data, they achieve safe and precise transport without human intervention. Routes can be easily configured and modified via software, allowing the system to adapt flexibly to changes in production lines or high-mix production. AMRs enable layout changes and reduce personnel burden in ways that were difficult with traditional forklifts or conveyors, driving both labor savings and efficiency. As a next-generation solution that balances safety and productivity, the adoption of moving-type AMRs is rapidly expanding across manufacturing and logistics sites. About Geekplus Geekplus is a global leader in mobile robotics technologies, developing innovative robotics solutions for order fulfillment. More than 950 global industry leaders use Geekplus solutions to realize flexible, reliable, and highly efficient automation for warehouses and supply chain management. Contact: Fish Yu Head of Marketing, APAC, Geekplus fish.yu@geekplus.com A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/dd389e9b-bd62-491a-904f-b5507d37a481 Facebook Twitter Registrate here for our newsletter If you are a human, ignore this field Outlook results Thursday US publications Ferrellgas Partners LP and Park City Group Inc Thursday European publications abrdn Property Income Trust Ltd and Enwell Energy PLC Wednesday US publications H.B. Fuller Company and Migom Global Corp Tweets door @Valuespectrum Returns European stocks Crypto currencies information About us Network Partners Fpgroup.nlinfo@analist.nlRSS feedContactIntellectual Property Photos Analist.nlLinksISIN Glossary MorningstarPrudena.comAAII.comNASDAQvwd GroupEuronextBATS Chi-x ©2026 ValueSpectrum. All Rights Reserved Developed and maintained by